66cf3947c98140b701e303a8e4956f1626ea23ff1d29dbd3dfb636bb98cfd178

Analysis

max time kernel
93s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
16/04/2024, 02:02

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General

Target
f26f3aa9606f3fc0a8b04812fe43ad36_JaffaCakes118.dll
Size 565KB
Sample240416-cghlcage71
SHA256 66cf3947c98140b701e303a8e4956f1626ea23ff1d29dbd3dfb636bb98cfd178
MD5 f26f3aa9606f3fc0a8b04812fe43ad36
SHA1 1c4659985a841cb37421a2463117936194b6d7be
SHA512 5edada35533f2713a45e34f821f2601c71d6b23fe0959a29446345a9414da70f9cf919280cb80aaf178e28a608d2375f52c7b0bad39b034dd212427840a7a331
SSDEEP 12288:dyA1ZdqVfv/6HftOIA3+00wstpSdCi3TLdLOGBZZYt0dbSVBw5:t1fqZCHwIr00taCiHplZZYOxS
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{CC01FC6C-A884-47E6-85F2-5EBA7C111BCE}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\f26f3aa9606f3fc0a8b04812fe43ad36_JaffaCakes118.xx\Clsid\ = "{CC01FC6C-A884-47E6-85F2-5EBA7C111BCE}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-A884-47E6-85F2-5EBA7C111BCE}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-A884-47E6-85F2-5EBA7C111BCE}\ProgID\ = "f26f3aa9606f3fc0a8b04812fe43ad36_JaffaCakes118.xx"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-A884-47E6-85F2-5EBA7C111BCE}\ = "xx"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-A884-47E6-85F2-5EBA7C111BCE}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-A884-47E6-85F2-5EBA7C111BCE}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f26f3aa9606f3fc0a8b04812fe43ad36_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\f26f3aa9606f3fc0a8b04812fe43ad36_JaffaCakes118.xx	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\f26f3aa9606f3fc0a8b04812fe43ad36_JaffaCakes118.xx\Clsid	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-A884-47E6-85F2-5EBA7C111BCE}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-A884-47E6-85F2-5EBA7C111BCE}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\f26f3aa9606f3fc0a8b04812fe43ad36_JaffaCakes118.xx\ = "xx"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 3656	1936	regsvr32.exe	84
PID 1936 wrote to memory of 3656	1936	regsvr32.exe	84
PID 1936 wrote to memory of 3656	1936	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f26f3aa9606f3fc0a8b04812fe43ad36_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\f26f3aa9606f3fc0a8b04812fe43ad36_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:3656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3656-0-0x0000000002170000-0x0000000002203000-memory.dmp

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